BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 451 



Diplograptus (Glyptograptus) angustifolius Continued. 



298. Ruedemann, Bull. New York State Mus. 42, 1901, p. 541ff. Weller, 



Geol. Sur. New Jersey, Pal., 3, 1903, p. 212, pi. 16, figs. 8, 9. Dale, Bull. 



U. S. Geol. Sur., 242, 1904, p. 33. 

 Diplograptus (Glyptograptus) angustifolius Ruedemann, Mem. New York State 



Mus., 11, pt. 2, 1908, pp. 36G-369, pi. 25, figs. 19, 20, text figs. 311-314. 

 Diplograptus (Graptolithus) angustifolius Lesley, Geol. Surv. Pennsylvania, 



Rep. P 4, 1889, p. 206, figs. 

 Chazyan (Nonnanskill): Glenmont, Stockport, Lansingburg, etc., New York; 



Kicking Horse Pass, Canada; Silver Peak Quadrangle, Nevada; Arkansas; 



Quebec; New Jersey; Great Britain. 



DIPLOGRAPTUS BARBATULUS Salter. See Diplograptus foliaceus. 



Diplograptus basilicus (Elles and Wood). 



Orthograptus basilicus Lapworth, Geol. Mag., 10, 1873, p. 134 (nom. nud.). 

 Diplograptus vulgatus var. basilicus Elles and Wood, Mon. British Grapt., pt. 6, 



1907, p. 243, pi. 30, figs. 2a-d. 



Ordovician: South Scotland (Lower Hartfell); Arkansas (Normanskill-String- 

 town). 



DIPLOGRAPTUS BICORNIS Geinitz. See Climacograptus bicornis. 

 DIPLOGRAPTUS BIMUCRONATUS Nicholson. See Lasiograptus bimucronatus. 

 DIPLOGRAPTUS CILIATUS Walcott. See Glossograptus ciliatus. 



Diplograptus crassitestus Ruedemann. 



Diplograptus crassitestus Ruedemann, Mem. New York State Mus., 11, pt. 2, 



1908, pp. 354, 355, pi. 25, fig. 6, text figs. 299-300. 

 Richmond (Sylvan): Arbuckle Mountains, Oklahoma. 

 Cotypes. Cat. No. 54266, U.S.N.M. 



DIPLOGRAPTUS DENTATUS Lapworth. See Diplograptus (Glyptograptus) euglyphus. 



Diplograptus dentatus (Brongniart). 



Fucoides dentatus Brongniart, Hist. Veget. Foss., 1, 1828, p. 70, pi. 6, figs. 9-12. 

 Graptolithus pristiniformis Hall, Geol. Sur. Can. Rep., 1857, p. 133; Canadian 



Nat. Geol., 3, 1858, p. 167. 

 Diplograptus pristiniformis Hall, Geol. Sur. Can., dec. 2, 1865, p. HOff, pi. 13, 



figs. 15-17. Nicholson, Quar. Jour. Geol. Soc., 24, 1868, p. 140, pi. 5, figs. 



14, 15. 

 Diplograptus dentatus Hopkinson and Lapworth, Quart. Jour. Geol. Soc. London, 



31. 1875, p. 656, pi. 34, figs. 5a-k. Emerson, Narrative Hall's 2d Arctic Exped. 



U. S. Navy Dept., 1879, p. 576. Ami, Geol. Sur. Can. Rep., 2d ser., 3, pt. 



2, 1889, p. 117k. Gurley, Jour. Geol., 4, 1896, p. 298. Elles, Quar. Jour. 



Geol. Soc., 54, 1898, p. 51 7. Ruedemann, New York State Pal., Ann. Rep., 



1902, p. 570; Mem. New York State Mus., 7, pt. 1, 1904, pp. 719-721, pi. 17, 



figs. 10-13, text fig. 100. Grabau and Shimer, N. A. Index Fossils, 1, 1906, 



p. 34. 

 Canadian: Point Levis, Quebec (Levis, Diplograptus dentatus zone); Deepkill, 



Rensselaer and Columbia Counties, New York (Deepkill, D. dentatus zone); 



Arkansas; England (Skiddaw); Wales (Arenig); Sweden. 



DIPLOGRAPTUS DISSIMILARIS Emmons. See Diplograptus foliaceus. 

 DIPLOGRAPTUS ETHERIDGII Hopkinson. See Cryptograptus tricornis. 



